Hello, syzbot found the following issue on: HEAD commit: 8568bb2ccc27 Add linux-next specific files for 20240405 git tree: linux-next console+strace: https://syzkaller.appspot.com/x/log.txt?x=11b4c49d180000 kernel config: https://syzkaller.appspot.com/x/.config?x=48ca5acf8d2eb3bc dashboard link: https://syzkaller.appspot.com/bug?extid=799a0e744ac47f928024 compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 syz repro: https://syzkaller.appspot.com/x/repro.syz?x=16c4258d180000 C reproducer: https://syzkaller.appspot.com/x/repro.c?x=16562e75180000 Downloadable assets: disk image: https://storage.googleapis.com/syzbot-assets/1d120b5e779c/disk-8568bb2c.raw.xz vmlinux: https://storage.googleapis.com/syzbot-assets/a89e3589a585/vmlinux-8568bb2c.xz kernel image: https://storage.googleapis.com/syzbot-assets/045e657c0e0d/bzImage-8568bb2c.xz mounted in repro: https://storage.googleapis.com/syzbot-assets/c14fae515f13/mount_0.gz IMPORTANT: if you fix the issue, please add the following tag to the commit: Reported-by: syzbot+799a0e744ac47f928024@xxxxxxxxxxxxxxxxxxxxxxxxx UDF-fs: INFO Mounting volume 'LiuxUDF', timestamp 2022/11/22 14:59 (1000) ------------[ cut here ]------------ WARNING: CPU: 1 PID: 5086 at fs/udf/inode.c:2053 __udf_add_aext+0x555/0x700 fs/udf/inode.c:2052 Modules linked in: CPU: 1 PID: 5086 Comm: syz-executor356 Not tainted 6.9.0-rc2-next-20240405-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024 RIP: 0010:__udf_add_aext+0x555/0x700 fs/udf/inode.c:2052 Code: b4 dc fe 49 8b 3c 24 4c 89 fe e8 86 27 ff fe 31 c0 48 83 c4 30 5b 41 5c 41 5d 41 5e 41 5f 5d c3 cc cc cc cc e8 6c a5 77 fe 90 <0f> 0b 90 e9 e7 fb ff ff e8 5e a5 77 fe 90 0f 0b 90 e9 54 fc ff ff RSP: 0018:ffffc9000350efb8 EFLAGS: 00010293 RAX: ffffffff831de844 RBX: 1ffff920006a1ec1 RCX: ffff888026e99e00 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000000001e0 RBP: 00000000000001e0 R08: ffffffff831de426 R09: ffffffff831de356 R10: 0000000000000002 R11: ffff888026e99e00 R12: ffffc9000350f600 R13: 0000000000000000 R14: dffffc0000000000 R15: ffffc9000350f608 FS: 000055558b967380(0000) GS:ffff8880b9500000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000055cc70f0db50 CR3: 0000000011250000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: <TASK> udf_setup_indirect_aext+0x792/0xa50 fs/udf/inode.c:2018 udf_add_aext fs/udf/inode.c:2105 [inline] udf_do_extend_file+0x6f8/0x11e0 fs/udf/inode.c:576 inode_getblk fs/udf/inode.c:816 [inline] udf_map_block+0x18d1/0x5560 fs/udf/inode.c:444 __udf_get_block+0x126/0x410 fs/udf/inode.c:458 __block_write_begin_int+0x50c/0x1a70 fs/buffer.c:2105 __block_write_begin fs/buffer.c:2154 [inline] block_write_begin+0x9b/0x1e0 fs/buffer.c:2213 udf_write_begin+0x10d/0x1a0 fs/udf/inode.c:261 generic_perform_write+0x322/0x640 mm/filemap.c:4009 udf_file_write_iter+0x2fd/0x660 fs/udf/file.c:111 call_write_iter include/linux/fs.h:2106 [inline] new_sync_write fs/read_write.c:497 [inline] vfs_write+0xa72/0xc90 fs/read_write.c:590 ksys_pwrite64 fs/read_write.c:705 [inline] __do_sys_pwrite64 fs/read_write.c:715 [inline] __se_sys_pwrite64 fs/read_write.c:712 [inline] __x64_sys_pwrite64+0x1aa/0x230 fs/read_write.c:712 do_syscall_64+0xfb/0x240 entry_SYSCALL_64_after_hwframe+0x72/0x7a RIP: 0033:0x7fc0f1893a79 Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 61 17 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007ffc1a02dcd8 EFLAGS: 00000246 ORIG_RAX: 0000000000000012 RAX: ffffffffffffffda RBX: 6573726168636f69 RCX: 00007fc0f1893a79 RDX: 0000000000000001 RSI: 0000000020000300 RDI: 0000000000000004 RBP: 00007fc0f1907610 R08: 00007ffc1a02dea8 R09: 00007ffc1a02dea8 R10: 0000010000000005 R11: 0000000000000246 R12: 0000000000000001 R13: 00007ffc1a02de98 R14: 0000000000000001 R15: 0000000000000001 </TASK> --- This report is generated by a bot. It may contain errors. See https://goo.gl/tpsmEJ for more information about syzbot. syzbot engineers can be reached at syzkaller@xxxxxxxxxxxxxxxx. syzbot will keep track of this issue. See: https://goo.gl/tpsmEJ#status for how to communicate with syzbot. If the report is already addressed, let syzbot know by replying with: #syz fix: exact-commit-title If you want syzbot to run the reproducer, reply with: #syz test: git://repo/address.git branch-or-commit-hash If you attach or paste a git patch, syzbot will apply it before testing. If you want to overwrite report's subsystems, reply with: #syz set subsystems: new-subsystem (See the list of subsystem names on the web dashboard) If the report is a duplicate of another one, reply with: #syz dup: exact-subject-of-another-report If you want to undo deduplication, reply with: #syz undup
